130793939 has 4 divisors (see below), whose sum is σ = 136480656. Its totient is φ = 125107224.

The previous prime is 130793879. The next prime is 130793951. The reversal of 130793939 is 939397031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939397031 = 19 ⋅49441949.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130793939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130793939.

It is not an unprimeable number, because it can be changed into a prime (130793969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2843324 + ... + 2843369.

It is an arithmetic number, because the mean of its divisors is an integer number (34120164).

Almost surely, 2^130793939 is an apocalyptic number.

130793939 is a deficient number, since it is larger than the sum of its proper divisors (5686717).

130793939 is an equidigital number, since it uses as much as digits as its factorization.

130793939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686716.

The product of its (nonzero) digits is 137781, while the sum is 44.

The square root of 130793939 is about 11436.5177829617. The cubic root of 130793939 is about 507.6088746975.

The spelling of 130793939 in words is "one hundred thirty million, seven hundred ninety-three thousand, nine hundred thirty-nine".